/Engine/Source/Editor/AnimationBlueprintLibrary/Public/AnimationBlueprintLibrary.h
Creates and Adds an instance of the specified MetaData Class to the given Animation Asset
static void AddMetaData ( [UAnimationAsset](API\Runtime\Engine\Animation\UAnimationAsset) * AnimationAsset, [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UAnimMetaData](API\Runtime\Engine\Animation\UAnimMetaData) > MetaDataClass, [UAnimMetaData](API\Runtime\Engine\Animation\UAnimMetaData) *& MetaDataInstance )